Infineon Technologies S26KL512SDABHM033

Overview

S26KL512SDABHM033 from Infineon Technologies is a 512 Mb (64 MB) HYPERFLASH™ NOR flash memory with HYPERBUS™ DDR interface, 1.8 V I/O, differential clock (CK/CK#), and 8-bit data bus (DQ[7:0]). It delivers 333 MBps sustained read throughput at 166 MHz, supports 256-KB uniform sector erase, and features ECC 1-bit correction/2-bit detection for automotive-grade reliability in –40°C to +105°C environments.

For engineers reviewing the S26KL512SDABHM033 datasheet, S26KL512SDABHM033 pinout, S26KL512SDABHM033 application, or S26KL512SDABHM033 equivalent, key selection criteria include HYPERBUS™ timing compliance, RWDS-synchronized DDR read strobe behavior, 512-byte program buffer efficiency, and AEC-Q100 Grade 2 qualification for ADAS and infotainment boot storage.

Technical Context

The S26KL512SDABHM033 implements a synchronous DDR interface using differential CK/CK# for precise timing capture and RWDS as a read-data strobe referenced to CK edges. Its MIRRORBIT™ architecture enables 16-bit word-aligned addressing and page-based access with 32-byte pages composed of two 16-byte half-pages.

Internal control logic splits functionality between Host Interface Controller (HIC) for signal-level protocol handling and Embedded Algorithm Controller (EAC) for autonomous execution of program/erase sequences. Command/address/data all transfer over the same 8-bit DQ bus in DDR fashion, eliminating dedicated address pins.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (VAA024), 5 mm × 5 mm × 1.0 mm, 0.8 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed NOR flash applications.

Compared with S26KL512SDABHM033, the Cypress alternative sacrifices automotive qualification for lower cost, while the Winbond option trades interface bandwidth and timing precision for broader controller compatibility - neither matches its combination of speed, ECC, and AEC-Q100 Grade 2 in a single package.

Availability

S26KL512SDABHM033 is available at Aetrix Electronics and suitable for automotive ADAS, infotainment head units, battery management systems, and telematics gateways requiring stable component supply across extended product lifecycles.

Supply support for S26KL512SDABHM033 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and high-reliability memory solutions for industrial and automotive markets.

The HYPERFLASH™ product line targets high-speed, low-pin-count boot and code storage in automotive ECUs and industrial controllers where parallel NOR footprint and SPI bandwidth are limiting factors.

FAQ

What is the purpose of the RWDS signal in S26KL512SDABHM033?

RWDS (Read Data Strobe) is an output signal synchronized to read data transitions on DQ[7:0]. It provides edge-aligned timing reference for the host to correctly sample DDR read data, eliminating setup/hold timing constraints that would otherwise require complex PCB routing or slower clock rates. RWDS is not used during write operations.

Does S26KL512SDABHM033 support both 1.8 V and 3.0 V I/O operation?

No - S26KL512SDABHM033 is a 1.8 V I/O variant only, indicated by the "D" in the part number suffix. It requires 1.8 V VCCQ and uses differential CK/CK# signaling. The 3.0 V I/O variants (e.g., S26KL512S*ABHM030) use single-ended CK and different timing specifications.

How does the 512-byte program buffer improve firmware update performance?

The 512-byte buffer allows the device to accept a full cache-line-sized write in one burst, then internally program all 512 bytes in ~475 µs. This achieves ~1 MBps effective programming rate - over 250× faster than single-word programming (500 µs per 2 bytes), significantly reducing OTA update time in automotive systems.

Is RSTO# output configurable for different reset pulse durations?

Yes - RSTO# pulse width is programmable via internal configuration registers. Users can set LOW periods from 100 ns to 100 ms in steps, enabling synchronization with diverse MCU power-on reset requirements or PMIC sequencing delays without external circuitry.